National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Partly Cloudy

86°F

30°C

Humidity 79%
Wind Speed S 6 mph
Barometer 29.91 in
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 10 Aug 5:42 pm CDT
Extended Forecast for

Naplate IL

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Southwest wind around 5 mph becoming calm. Winds could gust as high as 10 mph.

    Low: 71 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: Showers and thunderstorms, mainly before 1pm. Some of the storms could be severe and produce heavy rainfall. High near 85. South wind around 5 mph becoming north northwest in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 85 °F

    Severe
    Thunderstorms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 70. East wind around 5 mph becoming calm in the evening.

    Low: 70 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 85. Calm wind becoming east southeast around 5 mph in the morning. Winds could gust as high as 10 mph. Chance of precipitation is 60%.

    High: 85 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 69. East northeast wind around 5 mph becoming calm. Chance of precipitation is 40%.

    Low: 69 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 81. Chance of precipitation is 70%.

    High: 81 °F

    Chance
    T-storms then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm. Cloudy, with a low around 67. Chance of precipitation is 70%.

    Low: 67 °F

    Showers
    Likely

  • Friday

    Friday: A chance of showers before 1pm. Mostly cloudy, with a high near 79.

    High: 79 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66.

    Low: 66 °F

    Mostly Cloudy
    then Chance
    T-storms

Detailed Forecast

Tonight
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Southwest wind around 5 mph becoming calm. Winds could gust as high as 10 mph.
Tuesday
Showers and thunderstorms, mainly before 1pm. Some of the storms could be severe and produce heavy rainfall. High near 85. South wind around 5 mph becoming north northwest in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 70. East wind around 5 mph becoming calm in the evening.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 85. Calm wind becoming east southeast around 5 mph in the morning. Winds could gust as high as 10 mph. Chance of precipitation is 60%.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 69. East northeast wind around 5 mph becoming calm. Chance of precipitation is 40%.
Thursday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 81. Chance of precipitation is 70%.
Thursday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 67. Chance of precipitation is 70%.
Friday
A chance of showers before 1pm. Mostly cloudy, with a high near 79.
Friday Night
A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66.
Saturday
A chance of showers before 1pm. Mostly cloudy, with a high near 83.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Sunday
A chance of showers. Partly sunny, with a high near 82.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 66.
Monday
Partly sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Naplate IL
 41.33°N 88.88°W
Last Update:
4:46 pm CDT Aug 10, 2026
Forecast Valid:
6pm CDT Aug 10, 2026-6pm CDT Aug 17, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation